Channel A acting weird.

Having problems ? let us know the details here
Post Reply
coinmaster
User
User
Posts: 4
Joined: Mon Jan 11, 2016 12:25 am

Channel A acting weird.

Post by coinmaster »

Hello, I just received my picoscope 2204 and tried to calibrate my probes using a square wave via the internal waveform generator and channel B shows the square wave just fine but channel A is showing a trapezoidal wave. I tried switching around the probes and it is not the probes that are the problem, channel A itself is reading it as a trapezoidal wave.
Is there some setting that would cause this or is my unit defective?

Martyn
Site Admin
Site Admin
Posts: 4491
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

Re: Channel A acting weird.

Post by Martyn »

Can you post a psdata file with each channel active and connected to the same probe, File->SaveAs and just save the current waveform, and we can take a look.
Martyn
Technical Support Manager

coinmaster
User
User
Posts: 4
Joined: Mon Jan 11, 2016 12:25 am

Re: Channel A acting weird.

Post by coinmaster »

Here you go
Attachments
20160111-0001.psdata
(405.08 KiB) Downloaded 468 times

AndrewA
PICO STAFF
PICO STAFF
Posts: 401
Joined: Tue Oct 21, 2014 3:07 pm

Re: Channel A acting weird.

Post by AndrewA »

Hi,

I see the issue, you have 'Resolution enhancement' turn on and set to 12-bits. (As your number of samples are low, the 'Resolution enhancement' is acting as a filter.)
Go to the channel 'A' option window. (click on the A button) set the Resolution enhancement back to 8-bits (turns it off).
Channel A now returns to a square wave.
https://www.picotech.com/library/oscill ... nhancement
Regards Andrew
Technical Specialist

coinmaster
User
User
Posts: 4
Joined: Mon Jan 11, 2016 12:25 am

Re: Channel A acting weird.

Post by coinmaster »

That was it, thanks.

Post Reply